package com.lyl.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.lyl.common.R;
import com.lyl.entity.User;
import com.lyl.service.UserService;
import com.lyl.utils.ValidateCodeUtils;
import jakarta.servlet.http.HttpSession;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * @author 李亚龙
 * @version 1.0
 */
@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate<String,String> redisTemplate;

    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        //获取手机号
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)) {
            //生成随机4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}", code);
            //调用阿里云提供的短信服务api发送短信

            /*SMSUtils.sendMessage("signName","templateCode",phone,code)*/

            //需要将生成的验证码保存到Session
            session.setAttribute(phone, code);

            //将生成的验证码缓存到Redis中，并设置有效期5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机验证码短信发送成功");
        }
        return R.success("手机验证码短信发送失败");
    }

    @PostMapping("/login")//(接口有问题--已经解决)
    public R<User> login(@RequestBody HashMap map, HttpSession session) {
        log.info(map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从Session中获取保存的验证码
        //这里有问题，无法从session取出验证码，报空指针异常（已经解决）
        //Object codeInSession = session.getAttribute(phone);

        //从Redis中获取缓存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);
        //进行验证码对比
        if (codeInSession != null && codeInSession.equals(code)){
            log.info(codeInSession.toString());
            //如果比对成功，则登录成功
            //判断当前手机号对应的用户是否为新用户，是的话，进行注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if(user == null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            //如果用户登录成功，删除Redis中缓存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }


        return R.error("登陆失败");
    }

}
